From 5daf47bb4e708fde32c1856a0d049e3c3d03c36c Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 26 May 2010 05:54:21 +0000 Subject: [PATCH] net/rds: Add missing mutex_unlock Add a mutex_unlock missing on the error path. In each case, whenever the label out is reached from elsewhere in the function, mutex is not locked. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @@ expression E1; @@ * mutex_lock(E1); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * mutex_unlock(E1); // Signed-off-by: Julia Lawall Reviewed-by: Zach Brown Acked-by: Andy Grover Signed-off-by: David S. Miller --- net/rds/ib_cm.c | 1 + net/rds/iw_cm.c | 1 + 2 files changed, 2 insertions(+) diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c index 10ed0d55f759..f68832798db2 100644 --- a/net/rds/ib_cm.c +++ b/net/rds/ib_cm.c @@ -475,6 +475,7 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id, err = rds_ib_setup_qp(conn); if (err) { rds_ib_conn_error(conn, "rds_ib_setup_qp failed (%d)\n", err); + mutex_unlock(&conn->c_cm_lock); goto out; } diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c index a9d951b4fbae..b5dd6ac39be8 100644 --- a/net/rds/iw_cm.c +++ b/net/rds/iw_cm.c @@ -452,6 +452,7 @@ int rds_iw_cm_handle_connect(struct rdma_cm_id *cm_id, err = rds_iw_setup_qp(conn); if (err) { rds_iw_conn_error(conn, "rds_iw_setup_qp failed (%d)\n", err); + mutex_unlock(&conn->c_cm_lock); goto out; } -- 2.20.1